Leonardo Dicaprio's mind-bending movie INCEPTION has scored another week at the top of the U.S. box office after taking an extra $27.5 million (£18.3 million) in its third week of release.The dream thriller's latest haul takes its current box office total to $193.3 million (£128.9 million). It was enough to keep Steve Carrell and Paul Rudd's new comedy Dinner for Schmucks from the top spot, opening in second with $23.3 million (£15.5 million). Angelina Jolie's action epic Salt slips one place to number three after failing to topple Inception last week (ends25Jul10), while the animated Despicable Me, which also stars Carrell, is in fourth position. Another family favourite, Cats & Dogs: The Revenge of Kitty Galore, debuts in the chart at five and Zac Efron's Charlie St. Cloud is another new entry at six.